Cita APA (7a ed.)
Blackburn, H., & Field, C. (1990). Performance of Somali Blackhead sheep and Galla goats in northern Kenya. Elsevier.
Cita Chicago Style (17a ed.)
Blackburn, H.D, y C.R Field. Performance of Somali Blackhead Sheep and Galla Goats in Northern Kenya. Elsevier, 1990.
Cita MLA (9a ed.)
Blackburn, H.D, y C.R Field. Performance of Somali Blackhead Sheep and Galla Goats in Northern Kenya. Elsevier, 1990.
Precaución: Estas citas no son 100% exactas.